OS_ScreenMode brokenness

Selecting a new style screen mode…

REM Example for 16Mcol 640x480
DIM mode% 23
mode%!0 = 1
mode%!4 = 640
mode%!8 = 480
mode%!12 = 5 : REM Colour depth
mode%!16 = -1: REM Frame rate, use first match
mode%!20 = -1: REM End of additional list of options
SYS "OS_ScreenMode", 0, mode%

SYS "OS_ScreenMode", 1 TO , setmode%
PRINT setmode%!16

The problem? The frame rate. When reading the screen mode back, the value that is read is the one used to select the mode (-1), and not the value that pertains to the mode actually selected (60, 75, etc etc).

Surely this is a bug, as when reading information on the current screen mode, you’re likely to want to know the current frame rate rather than knowing it was chosen as “whatever, I don’t care”.